Zinc electrode.



PATENTED MAR. 26

C. B. SGHOENMEHL. ZINC ELECTRODE. APPLIOATION FILED my. 16, 1905.

vwawto'c U/zarks 98.50506 9? W62??? then riveting it thereto in a way and is adapted to be used in a jar formed of brass or iron, as preferred found to be objectionable, owing to between cover and zinc.

are formed causes umrsn srn'rps prssr. orrron.

zmc ELECTRQDE;

Specification of Letters Patent.

I'Eatented Maren 26. 199?.

Applicatiou'filed November 16,1906. Serial No. 287,6 1-1.

T0 on whom it may concern:

Be it known that 1, CHARLES B. SCHOEN- MEHL, a citizen of the United States, and a resident of Waterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Im rovements in Zinc Electrodes, of which t e following is a specification.

- This invention refers to an improvement in galvanic batteries, and more particularly to an electrode formed of zine or other material, containing a pro er solution in connection with a negative e ement of any preferred kind.

Zinc electrodes as now market-are made largely in two distinct styles, one being known as a cylindrical zinc, while the others are commonly called lates. These different types of zinc are use in different styles of batteries and are adapted to be renewed from time to time as may be required in recharging the battery. The cylindrical types have heretofore been commonly made from sheet-zinc, being first cut to proper form and size and then rolled or bent into cylindrical shape, and to these are attached suitable supporting rods or wires These wires have heretofore been attached to the cylinders by first bending the lower end of the Wire at substantiallya right angle, passing it through a hole in the wall of the zinc, and to form a secure engagement. The upper ends of the wires are threaded to receive jam and thumb nuts for attachment to thecover and for the attachment of a conducting-wire. The platezincs usually contain but one suspending-rod and are frequently attached to thecover in somethin the same way as the circular zines. Both of the above forms of zines have been the eX- posure of the solution to the suspending-rod The differences in of which the rod and zinc local action between the two adjacent to the surface and at the point of union, This local action consumes the abutting surfaces, causing corrosion, stroyin'g the contact between the rod and the kinds of metal zinc beforelthe latter has been fully con sumed. I

- It istherefore the purpose of this invention to improve upon zinc electrodes of the above classes, and especially the cylindrical zines above referred to. This I do by first producfound upon the ing a cast zinc adapted to be subme having suspending-rods that are and protected, so as to preclude any contact of solution therefrom, and, further, so to he stiffened and strengthened; to provide in connection with sai reinforced supports a hardened shoulder upon the rod and adjacent to its upper end for the coverof the battery to rest upon and in a way to insure a firm an durable engagement ofthe rods with the cover, thus preventing the rod and Zinc from becoming loose as the reinforced end portion. of the zinc becomes soft or eaten away, and, finally, to insure a better cbnducting medium circuit-wire.

With the above objects in view my invention resides'and in the novel construction and combination of parts shown upon the accompanying sheet of drawings, forming a part of this specification, upon which similar characters of reference denote like or corresponding parts throughout the several figures, and of which-- Figure 1 shows a central vertical cross-section through my improved zinc electrode and coverto which it is attached. Fig. 2 is a detached perspective vicwof my improved electrode complete. Fig. 3 shows a detail perspective sectional view of the upper end of amodified form of supporting-rod. F 1g. 4 is a further perspective view of another form of sus ending-rod embodying myi =ntion.

Re erring in detail to the char reference marked upon the drawi 'sents the electrode, which is. prei from the electrode to the bindingpost for the My ora cylindrical construction formed of cast zinc of substantially a uniform out, with the exception of ing the suspendin -poles. Here the metal is increased in thic mess and referably more thickness tlnouglb pronounced on the exteriort ran on the Tilt/8"" rior surface. R0 (is C C are embedded in these sides, as clearly ap ears in Fig. l, and the metal of the electro e is extended up around these rods, as shown by E, above the main body ofthe electrode, and likewise above the normal line of the solution, as indicated by X in Fig. l. I This metal covering is of subthe sides l3: adjoin stan'tially'a uniform thickness and entirely covers all the portion of the rod C which is designed to he -submerged in the solution, thus hermetically sealing the same. The up per ends of these extensions form shoulders G, upon which the cover H for the battery- 1 jar (not shown) rests. The upper portions F or the rods zn throadeihas indiorit: upon lhesc threads i nrovidc scl-nuls l and a. 1 YdDlb-llu'i J, tho l'ornicr for the securing of "llq-f: clcci rodc LO the coxcr and the latter for til" nlrnc nncnt of n, circuimrire. (Not 'EL-UliC-iil i ro er l'ornicd only ol the "oiL zinc is no; :Illil'iCiOllti dufilil 2 1: glnnilyre 4 l shill about in :2 uin ncnt and Guyv l ha i r forming .Lilill I'hc rovcring :i luirdencd the Suppin'ring-rods (I. ldor Li may he obtained or n i= a soon ii 15-1-11 3. on ih:

:ainc

V i l A ore uni zinc is cast illCiLill ninhlc lnuldor can]. bc lnnl l); n ii he I he and and iurning olil in Fig. a clnni pcr Wu of lnrnn g this 'ouldcr is shown in t ne for- 1D dion ol n pair ol lugs L, which are llllOXIl out on oppo 0 Sides ol' the brass or iron rod by suitable dim: 11" any ordinary loot or power rcss. The lnirdcncd shouldcr ii in. all instances would (Jl).'i0u 'l h'c formed or adjusted so as to insure its top law. register will he ncc of ihc cud shoulder G of Lhe Zinc rcinl'orccnicnt.

An electrode cl this clnnnclcr can he manufactured at a cost not to ox ccd Lind ol the old li-ync and n'n ch inoro durnhlc nnd cllicicni; in ils opcrzilimr It insures lhc cloctrodc rciniining in 22 positive, fixed position with rchilion to i-hc cover it pcrnlils tho eleclrodr to he cnlirily sulnni-rgcd (LlHl ini'd in llH iliPl'lli-"kliiiwli l'o cililicr i'ihc cyiindcr experience that: a

ii: in zLii anypossiblelossol'condurtivilv. i

l l i pror'cinr-nisi i l l l and I claim, and desire to sccurc by Lctlcrs Pill?- ent, is 1 1.. An clccbrode, ccunprisin; a & reduced extension, n,- SHSicllillllgflull enrbedded in but protruding from lid cxrerr sion, and a hurdisnod shoul on said rod ail-- joining the end of the anions on to under side of t in cover.

2. An elcctrode, compi 'sing zinc a reduced cxtensioiii, iauspendi tended from said exici shouldcr upon said rod and mnhcddcd nd of said extension. I

A lml;tory-nloctroiilc comprising 1(' Vlin-- dricnl zinc having one or more poles lorincd in'tcgrnl therewith cxtended l)( "()Hkl the main hod ol tho xinc. nnspcnilii1gro(ls pnrtinllfr inclosod in said p lvs and zinc in away to hrprotcctvd h the sauna, and inn" dors upon the rods L0 cng'nge of tho cover.

l. in clcctrodc, comprising a zi rpending -rod cnxhcddcd in. but pro. l'roin snid zinc, n shoulder on iSfl-ii'l gage a cover, and an cxtcnsion ol surround tho sidcs ol quid Shoulder and c0 also engage said cm ci:

5. A. hnltcnY-clccrro'il0 comprising a zinc conlaining n simpnnding-rod cinhcddcd therein and having 11 lui'rdcncd shoulder znljaccn lo its upper 0nd, a zinc covering lor llll. lower portion of said rod and shoulder formed in t0- grnl Willi said nniin zinc, said covcring hiring providcd \xilh n SllOlllllcf at its upper and surrounding the shoulder of the rod and ndnptcd to form n liquid-light joint with the lmLLcnr-covcr Lo proLm-l; the uncovcrcd porlion ol ,suid rod from tho action of lhc hattcry solulion.

6. An electrode, comprising a zinc, a suspcndingrod mnhcddcd in but protruding from .sn id zincv an annular shoulder upon the rod adjoining Lhc l'ncc ol tho zinc to form a. hard cngnuin g surl'nco.

T. An olm-lrodo, comprising 2' zinc, a suspcndingrod cimhcddcd in hill. protruding l'rom said zinc, and it shoulder on said rod :idjoining llic law oi tho zinc Lo liorni a hard ongnging vsurl'ncc.

An vlmzlrodc, comprising a zinc having n rcdnccd' cxlcnsion, n suspunding-rod inl cddvd in hut prolrndin l'roin said cxicnsion. and an inlcu'ml annular sliouldcr upon tho rod adjoining tlic lawn ol' tlic Zinc lo l'orm iL lnu'd vngr in u' surl'ncc for thc co v01.

Signed this 15th day of Novendmr, A. 1). i005.

(/l lAliLl lS l3. SCl lUlGNMlQl lli.

i). M ".VMAN, ll. l1]. HALL. 

